Absorbent closure cap



Nov. 14, 1944.

` c. F. BOESEL.

ABSORBENT CLOSURE CAP Filed Aug. 30, 1941 Patented uw. i4, 1944v UNITED )STATES 'l rn'riezvlxl'rl OFFICE 3 Claims.

This invention relates to absorbent closure caps v for receptacles containing dryv medicinal materials'and the like, and is a furthering of the im provements of my U. S. Letters Patent No.

2,317,882, dated April 27, 1943.

'I'he invention of this cap or stopper goes to the provision of an improved enclosure in connection therewith, for containing an absorbent or dehydrating property to preserve and maintain drugs or medicinal chemicals which may be of granular'form and consequentlyvporous, in their original dry state so that the eillciency thereof will not be impaired by moisture from humid air entering the receptacle or bottle to which the cap is removably secured', during dispensing of some of the contents.

A cap of this improved character and as disclosed, may be used as an auxiliary cap for the receptacle after the removal of the original package cap, as the capping or closing of the package 1 or bottle at the place of manufacture is generally carried on in especially provided air conditioned places. l

, Drug preparations of eervescent character are usually dispensed from wide-mouthed bottles and consequently when the bottle is opened, moisture laden air is admitted into the lcontainer on every occasion of dispensing a portion of the contents, and subsequently the active properties of the contents are destroyed, thus undoing the very thing for which the drug manufacturer took pains to prevent. v

closure cap of assembled parts and whereby part of the assembly may be used for renewability of the cap.-

With the foregoing and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes may be made within the scope of what is claimed without departing from the spirit of the invention;

In the drawing: Figure l is a vertical sectional elevation taken through this improved absorbent closure cap and the upper portion 'of a receptacle or bottle to which the cap is removably secured.

Figure 2 is an inverted horizontal sectional view taken approximately on the line 2-2 of Fig. l.

The improved cap disclosed by this invention y can therefore be used as an original cap or stopper or as an auxiliary cap to be applied to'and used on a bottle after the original cap has been removed or destroyed, as the absorbent means thereof will dehydrate humid air, ifl any, which may be formed in a partially filled bottle with which this improved cap may be cooperably secured. One of the objects of the inventionisy to provide an improved closure cap for bottles with attached dehydrating means forming a part thereof. Another object is to provide a closure cap having improved dehydrating means attached thereto.

Afurther object is to provide an absorbent closure cap for a drug containing receptacle and the cap vhaving an improved dehydrating mate- Figure 3 is a vertical sectional elevation taken through the detached parts of this .improved absorbent closure cap and showing. the vparts in position for being secured together.

Referring to the drawing, 8 indicates the upper portion of a bottle or receptacle having a neck 1 whichis exteriorly threaded at 8, Vand for engagement with the thread 8 is the interior thread 9 which is formed in the side wall III of a' cap II.

y The cap II is provided with a top wall I2 having perforations I3 and adjacent the perimeter of the top wall are a series of inclined apertures Il, said apertures'being for the insertion of respective tongues I5, a'series of which are e'xtended from the open end I6 of a chamber I l. 'During securing of the chamber I1 to the cap I I, it may be preferable to dispose the chamber with its wall .I8 lowermost, in the manner as shown inA Fig. 3, and in this position, the dehydrating material or substance I9 which may be of activated aluminum, magnesium or any other suitable agent, is lled in the chamber I1 and a lining of fabric 20 is placed on top thereof.

I'he cap lII which may also be inverted and disposed above the chamber I'I, is manipulated to engage the tongues I5 in-respective apertures I4 of the top wall I2 of the cap, and as the apertures Il of the cap are inclined upwardly and inwardly when the cap is inverted, the tongues I5 will be forced inwardly in` a circumferential row and are pressed downwardly against the inner surface of the top wall I2 of the cap. A gasket 2| is then mounted in the cap II at the inner end of the and the gasket will seaiingly engage the top or the bottle neck, as shown in Fig. 1.

When it is required to replenish the chamber engaged and secured in the apertures i4 after re- 10 filling the chamber and replacing the fabric lining for preventing the material falling through the perforations I3.

Having thus described the invention shown, so

that those skilled in the art will be able to practice 15 the same, what I desire to secure by Letters Patent is defined in what is claimed, it being understood that various changes in the devices shown and described in detail and not amounting to invention,

a plurality of projections for securing it to said member above the top wall by insertion of the projections in certain ofthe top wall apertures, and a gasket borne by said member for securely seating the ends of said projections against the underside of the top wall of said member.l

2. An absorbent cap'for a drug receptacle comprising a threaded member having a perforated top wall, circumferentially disposed inwardly deeeting apertures .insaid'top wall adjacent its perimeter, and a dehydrating material chamber disposed above the top wall of said member and having a series of projections engaged in respective apertures of said top wall.

3. An absorbent cap for a drug receptacle comprising a threaded member having a top Wall, circumierentially disposed apertures in said top wall adjacent its perimeter, a dehydrating chamber having bendable projections cooperable with may be made Without departing from the Spirit 20 said apertures for securing said chamber to said and scope of my invention.

What I claim is:

1. An absorbentcap for a drug receptacle comprislng a threaded member having an -apertured top wall, a dehydrating material chamber havin g g5 top wall of said member, and means borne by said member for clamping engagement with the ends oi' said projections.

, CHARLES F. BOESEL. 

